[modeleng] Re: milling chuck
- From: "Ron Head" <ron.head@xxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Sun, 28 Dec 2008 18:38:23 -0000
Hi Jem
Several years ago, I too fitted a Vertex chuck to my Dore-Westbury (I think the
chuck was called a Posilock - in reality a poor man's Autolock). In practice,
I found the thing too unwieldy. Apart from being a real pain to use, it wasn't
very accurate, and it put the cutter 3-4 inches further away from the spindle
bearings, magnifying any runout and making the whole thing very 'whippy' due to
the small spindle.
I went back to using Myford 2MT collets directly in the spindle socket, and
sold the Vertex chuck. I know this limits me to cutters of 1/2" shank
diameter, but for the sort of work I do, it isn't a problem.
Regards
Ron
----- Original Message -----
From: JEM HARRISON
To: modeleng@xxxxxxxxxxxxx
Sent: Friday, December 26, 2008 11:54 AM
Subject: [modeleng] Re: O/T Christmas greetings
Merry Christmas and a Happy New Year to all modeleng@freelists.
Â
Dennis,
Â
Good to know that someone else has a battered D-W !
Â
I bought a Vertex (which I gather is a Clark type), probably from Chronos.Â
It comes in a nice box, with three collets and a wopping great spanner.....but
no instructions. At least a flat-pack from IKEA comes complete with
pictograms...a vast improvement on the martian tomes that accompany electronic
gadgetry. Would-be model engineers are assumed to know how to fit/strip/use
tools and attachments safely and successfully. Oh, yes?!
Â
The Vertex chuck is, I think, well made, and I would recommend it. My only
reservation would be that I wonder if other designs of milling chuck might be
more suitable for the D-W.
My current project, heading for the scrap-bin, is a pair of cylinders for the
Paul Forsyth 'Jersey Lilly' design in Gauge 1. I purchase two slot drills
(one-sixteenth and one-eighth)from Chronos to mill the steam ports, but I found
that they are not long enough to engage with the nipple in the chuck, and if
they were, I would never get the darned things out! Chronos have kindly agreed
to exchange the slot-drills for the long series, but I am still waiting for
them to arrive.
Â
I suspect that there are other milling chucks more suitable for small
machines, but I have no experience of them. I did wonder about trying the ER25
collet chuck, but a problem I find with this on my lathe is that if I remove a
work piece from it and re-insert it, it does not run true, so I have to undo
the chuck and rotate the workpiece several times before it is as near as dammit.
Â
Nothing is straight-forward in this game!
Â
Best wishes,
Â
Jem Harrison
Basildon UK
--- On Fri, 26/12/08, Dennis Rayner <dennis.rayner@xxxxxxxxxxxx> wrote:
From: Dennis Rayner <dennis.rayner@xxxxxxxxxxxx>
Subject: [modeleng] Re: O/T Christmas greetings
To: modeleng@xxxxxxxxxxxxx
Date: Friday, 26 December, 2008, 10:46 AM
Santa was good to me - he brought me a book on milling (never had any
training in my life) AND spending money!
I've come to the conclusion that I should replace my old Clare chuck with a
new one for my rather battered Dore-Westbury.
I wondered if any of the (UK?) group members had any recomendations as to
make /model/suppliers?
The D/W has a #2 MT fixing.
Thanks in advance for any advice.
Dennis
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